Locomotive



Oct. 20, 1942. M. ESSL' LOCOMOTIVE Filed Nov. 14, 1939 6 Sheets-Sheet lI l I J IIIIIIIIIIlIIIIIIIIIIIIIIIIIIIIIIIIIIIIIlIIIIIIIIIIII/IIIIIIIIIIIVIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII,

IIIIIIIIIIIIIIIIIIIII" I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIJ H8) l lgll wllllll INVENTOR Plnx E551.

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il v ATTORNE Oct. 20, 1942. 555] 2,299,420

LOCOMOTIVE Filed Nov. 14, 11939 6 Sheets-Sheet 2 -m|. m, ,111VIIIIIIIIIIIIIIIIIIIIJTIIIIIIIIVII r1111)IIIIIIIIIIIIIIIIIIWIIIIIIIIIIIIIIIIIIIIIIIIIIII11114I ATORNEY Get. 20,1942. ESSL 2,299,420

LOCOMOTIVE Filed Nov. 14-, 193's 5 Sheets-Shet s Oct. '20, 1942. M. ESSLI LOCOMOTIVE Filed NO\(. 14, 1939 6 Sheets-Sheet 6 Patented Oct. 20,1942 UNITED STATES E ATENT QFFICE LOCOMOTIVE Application November 14,1939, Serial No. 304,417

30 Claims.

This invention relates generally to locomotives and more particularly toDiesel electric locomotives of large horsepower for a relatively shortlength of locomotive.

A locomotive of the type herein disclosed employs a plurality ofengine-generator units each disposed transversely of a main bed frame ofa locomotive and extending a substantial distance across the widththereof, these units being disposed in relatively close side by siderelation to each other and which, if desired, may be slightly spacedapart in a direction lengthwise of the bed frame. In such a type oflocomotive the individual power units preferably include as aselfcontained part thereof an air cooled radiator for the engine coolingwater, this radiator being placed preferably near an external surface ofthe locomotive super-structure. It is also preferable that the powerunits be individually removable in the event that major repairs arerequired on the power unit and in this event another unit may besubstituted for the removed unit at any predetermined shop station alongthe railroad. However, it may not be desirable to require removal of aunit merely to make minor adjustments to or inspection of the powerunits and to this end I have provided an improved arrangement in such acompact locomotive whereby a man may pass from one end of the locomotiveto the other end thereof and also preferably have access to thepassenger cars through usual end Wall doors thereof.

It is one object of my invention to provide an improved combination ofelements whereby a very effective walkway extends longitudinally of thelocomotive, preferably substantially through the middle thereof, butwithout increasing the amount of space allotted to any given number ofpower units and at the same time insuring comfortable head room so thata man can walk conveniently through the locomotive as well as have ampleroom in which to inspect the power units or make minor adjustmentsthereof. The problem in connection with such a Walkway is especiallytroublesome in the type of locomotive hereof inasmuch as the power unitsand their auxiliary apparatus occupy substantially the entire width ofthe bed frame, while the vertical height of the super-structure isdefinitely limited by standardized clearances through tunnels and underbridges heretofore established on various railroads.

Another object is to provide an improved combination of the engine,radiator, air circulating fan and power unit so as to obtain not only ahigh degree of compactness together with efficient air circulation butalso to insure a very desirable and improved relationship of thisradiator and air circulating means to a structure for supporting theroof and side Walls of the locomotive super-structure.

A further object is to provide an improved form and arrangement ofexternal wall supporting structural members correlated with respect tothe power unit so as to insure utmost simplicity in arrangement togetherwith maximum strength and rigidity, it being understood that maximumsimplicity is of great value not only from the standpoint of reducingmanufacturing and maintenance costs, but also of reducing complicationsin a space which already contains a highly concentrated amount of powerapparatus.

Still another object is to provide an improved cabinet section forelectrical equipment such as an auxiliary generator and other usualelectrical accessories, it being particularly desirable to have theseelectrical elements not only readily accessible by a man standing on theWalkway but also to have said elements related in a simple and durablemanner to the super-structure and in addition permit a simple andaccessible driving connection from the power unit to the auxiliarygenerator.

An additional object is to provide an improved combination of elementsfor removably supporting the complete power unit and to provide improvedmeans whereby the power unit and the external wall structure combinedtherewith may be bodily lifted as a unit from the locomotive frame in asimple and direct manner.

Other objects and advantages will be more apparent to those skilled inthe art from the following description of the accompanying drawings inwhich:

Fig. l is a side elevation of a locomotive embodying my invention;

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1, butwith the trucks omitted for the sake of clarity;

Fig, 3 is a fragmentary transverse section taken substantially on theline 33 of Fig. 10, parts of the power unit being omitted in order toshow more clearly the structural elements for supporting the externalsurface walls of the super-structure,

Fig. 4 shows a modified arrangement for supporting the electricalauxiliary equipment whereby the accessories and its supporting membermay be bodily removed as a self-contained unit;

Fig. 5 is an enlarged transverse section taken axially connected.

on the line 55 of Fig. 2, showing the means whereby the power units maybe bodily lifted;

Fig. 6 is a perspective view of the super-structure frame work;

Fig. 7 is a longitudinal vertical section taken substantiallyon the line1-1 of Fig. 2;

Fig. 8 is an enlarged fragmentary sectional view taken substantially onthe line 8-8 of Fig. 2 showing an improved arrangement for supportingthe power unit;

Fig. 9 is a longitudinal vertical section taken substantially on theline 99 of Fig. 2;

Fig. 10 is a horizontal section taken substantially on the line Il0 ofFig. 2;

Fig. 11 is an enlarged view, partly broken away, through one corner of acylinder head to show the manner in which the lifting means is connectedto the engine;

Fig. 12 is a sectional plan view taken substan: tially on the line l2|2of Fig. 2;

Fig. 13 is an end elevation of the power units of Fig. 2 viewed from theengine end thereof;

Fig. '14 is a modified arrangement of the power units showing anotherform of walkway extending lengthwise of the locomotive;

Fig. 15 is a sectional plan view taken substantiallyon the line I l 5 ofFig. 14;

Fig. 16 is a side elevation of the power units taken substantially onthe line l6l6 of Fig. 14; and

Fig. 17 is a fragmentary longitudinal vertical section of one of theupper corner connections between the super-structure frame and theradiator, taken substantially on the line Il-l! of Fig. 12.

A locomotive of the general type embodying my invention isdiagrammatically shown in Fig. 1 as comprising a main bed frame Imounted upon preferably articulated driving wheel units 2 and 3 of anyconventional or usual form in which the wheels are driven by a series ofelectric motors 4. Preferably each end of the locomotive is providedwith a cab 5 which, if desired, may include compartments for usuallocomotive accessories such as compressors, heating boilers, aircirculating blowers for the driving motors or other usual apparatus. Aseries of preferably identical transversely disposed power unitsgenerally indicated at 8 extend preferably entirely between the two cabs5,5 in relatively close side by side relation to each other and to thecabs.

Inasmuch as the various power units, and their respectivesuperstructures, are preferably identical, it will suffice to describeonly one unit in detail. As shown in Fig. 2, the power unit comprises anengine 9 generally of the vertical type such as a V-type engine orsimple vertical type engine but both having their sets of cylinders inline and provided with a usual crankshaft to which a rotor of anelectrical generator I0 is co- The stator casing of the generator isbolted preferably directly to the end of the usual engine frame so as toform a rigid integral part thereof. Supported at the end of thegenerator and driven from the shaft therein in anysuitable manner, as bygears, is a propeller type fan II, it being noted that the axis thereofis offset above the axis of the engine generator unit thereby allowing afan of maximum diameter to be employed without any restriction from thebed frame I.

An engine water cooling radiator I2 is supported directly in front ofthe fan I by a pair of sheet metal combined air shields and supportingmetal members are of arcuate form at their inner ends and are clamped tothe end of the generator stator casing as by bolts l5, while the outervertical edges of these members are connected preferably by flanges andbolts I6 to vertical water headers 11 and ll! of the radiator. As shownin Fig. 10, suitable lateral ribs or other reinforcing means l9 aresecured along the sides of the brackets l3 and [4. The lower edges 20 ofthe bracket members, as shown in Fig. 2, extend to the lower end of theradiator headers and are spaced just above the upper supporting surfaceof the bed frame I while the upper straight edges 2! constitute supportsfor one side of my superstructure generally indicated at 22 to bedescribed hereafter. The engine, generator, radiator, brackets thereforand blower all comprise preferably a self-contained unit which issupported upon bed frame I through any suitable preferably releasableconnections which are specifically shown herein in Fig. 8 as comprisinglugs 25 formed integrally with the generator stator casing and with theengine crank case on each side of the same. A suitable cushionpreferably a piece of conical rubber 26 is received in a conical recessof lugs 25 and bears upon a suitable base 21 which is permanentlysecured in any suitable manner to the bed frame I. A stud 28 projectsupwardly from base 2! to maintain lug 25 in its operative relation tothe rubber cushion. The foregoing supports are placed preferably nearthe center of gravity of the engine and generator respectively therebyminimizing the number of supports required. This arrangement permitsquick and easy disconnection of a power unit from the bed frame orreconnection thereto, while at the same time providing an extremelysturdy structural connection.

The foregoing engine-generator power units are duplicated in accordancewith the total amount of power desired and these are placed inrelatively close side by side relation to each other and, if desired,may be slightly spaced apart in a direction lengthwise of the bed framethereby providing such degree of access between the units as may berequired for inspection and minor repairs if necessary. It will be seen,however, from Fig. 12 that the space between the units represented bythe distance 29 is of such extent that lengths of the engine-generatorunits thereby inbrackets I 3 and I4, Figs. 9 and 10. These sheet suringeffective utilization of the floor space of the bed frame I. As is seenfrom Fig. 1, if all of the power units 8 were removed, the uppersupporting surface of bed frame I would have a fiat car effect extendingsubstantially without interruption between the two end cabs 5. However,when the power units are placed in position as shown and with allengines preferably on the same side, they form a longitudinally compactbank of transverse power units whose external super-structure roof andside walls are substantially contiguous with each other and with theexternal surface of the cab structures thereby providing a smoothcontinuous appearance of an integrated locomotive. Reference herein totransverse units means that the engines are positioned with their axes,i. e. crankshaft axes, extending transversely of the locomotive frame.

The super-structure for each unit comprises, as shown in Figs. 2 to 7, apair of angle irons 32 and 33 faced toward each other and each having anarched roof portion 34, a full height side portion 35 and. a shortheight side portion 36. The shape of these angle irons defines thecontour of the external. super-structure wall and said irons aresuitably connected by any number of cross pieces 31, 38, 39 and 49suitably spaced from each other and all welded together to form anintegral unit, although it will of course be understood that anyadditional number of longitudinal bracing strips may be employed. Toprovide a suitable support for electrical accessories, Fig. '1, such asan auxiliary generator 4| and an electrical compartment box 42, a secondlongitudinal iron 43, Fig. 6, is supported from the main angle irons byvertical hanger strips 44 in transverse brackets 45. This structuralunit is supported on and preferably forms an integral part of the powerunit as clearly shown in Fig. 2. The angle iron brace 31 is supportedupon and removably bolted to a longitudinal angle iron 46 secured alongone end of the frame of engine 9 while angle iron member 40 is supportedon top of the radiator headers I1 and I8 as shown particularly in Fig.17, the brace 40 being secured to upper end closure plates 41 of theheaders I1 and H! by studs and nuts 48. The transverse angle pieces 45rest upon and are suitably removably bolted to upper straight edges 2|,Figs. 2 and 3, of the sheet metal brackets l3 and I4. A sheet metalsheathing 49, Fig. 2, may be suitably wrapped around and secured to theexternal contour of the frame members 32 and 33 thereby forming theexternal wall of the super-structure for each individual unit. Thisexternal sheet metal wall 49 extends preferably for the full length ofthe long sides 35, Fig. 2, and for the full length of the short side 36,although, if desired, the sheet metal may continue down around over theradiator headers l1 and I8 with a suitable opening to allow air to flowthrough the series of radiator cores 50, Fig. 1'1. As is shown in Fig.2, the external wall and frame structure therefor is slightly spacedfrom the upper supporting surface of bed frame I thereby permitting thesupporting cushions 26, Fig. 8, to be freely operable. Regardless of theextent of the spacing 29 between the power units, the side and roofwalls of each unit preferably overhang the same in a directionlengthwise of the locomotive with the result that the wall edges ofadjacent units are in contiguous relation to each other.

The auxiliary generator 4| is preferably located, as shown in Fig. 7, atone end of the short side 22 of the super-structure frame and is drivenpreferably by belt and pulleys 5| from the air blower I. The compartmentbox 42 may contain any of the usual electrical devices and accessoriessuch as switches, circuit breakers. etc. The blower may circulate airthrough suitable louvres 49 formed in the wall 49 on the long side 35,Fig. 2, and thence over engine 9 and through the space between fanshields l3 and I4 and outwardly over radiator cores The radiator coresare of usual construction removably bolted to the end water headers.

To facilitate removal of each individual power unit, together with itssuper-structure 49, I preferably provide, as shown in Fig. 2, a pair ofstanchions 56 and 51 on one side of the engine-generator unit and acorresponding pair of stanchions on the other side. The pair ofstanchions 56 are suitably bolted as at 59 to the generator III whilethe upper ends of these stanchions are laterally supported in a suitablebracket 59 bolted as at 69 to the vertical leg of angle iron portions34, 3.4. The upper ends of stanchions 56 bear against the horizontal legof angle iron member 39 which has a suitable opening 5|, Figs. 5 and 6,inregister with a similar opening in the sheet metal wall sheathing 49.The other pair of stanchions 51 are connected as shown in Fig. 11 to acylinder head bolt through the medium of a threaded union 62. The upperend of these stanchions 51 are connected to the other cross member 38,Fig. 6, in the same manner as previously described for stanchions 56 andhence corresponding parts wherever shown are. given the same referencenumerals.

To remove a power unit the nuts 28, Fig. 8, are removed and eye-bolts63, Fig. 5, are inserted into the threaded sockets in the upper ends ofeach of the four stanchions 56, 51. A lifting crane is then connectedinto the series of four eye-bolts 63 and the whole power unit bodilylifted from the bed frame independently of all other power units. If forany reason it is desired to remove the covering from a power unit, thebolted connections of the frame structure 32 and 33- with the engine andradiator may be removed thereby allowing the entire wall structure to beremoved as a unit. In the form of Fig. 2, the accessories would beremovable with the super-structure frame, although in another form theaccessories would remain with the power unit. The external wallstructure as shown permits convenient and compact positioning of usualengine auxiliary devices such as a supercharger 65, anair filter 66 andexhaust mufllers 61 to be suitably connected to the en.- gine intake andexhaust manifolds and to be located immediately adjacent to the sidewalls and roof to one side of the longitudinal centerline of thelocomotive. This is particularly useful in connection with thelongitudinal exhaust mufllers 61, one being provided for each bank ofcylinders of the V-type engine thereby allowing ample head room for aman as clearly shown in Fig. 2.

To provide a walkway through the locomotive so that a man may haveaccess to the engines and to accomplish this walkway by a highlycooperative functional and structural relationship of the variouselements involved soas to avoid the necessity of causing the powerequipment or accessories thereof to be unduly restricted, cramped or inany way limited or interfered with, I have in the specific aspect of theinvention effectively utilized the power unit structure, preferably thegenerator HJ, by mounting on each side thereof a pair of cantileverwalkway treads 19 and 1|, Figs. 2 and '1, supported by vertical plates12. The treads 10 and 1| are in alignment with corresponding treads onadjacent power units thereby providing a continuous walkway throughoutthe entire length of the locomotive. Inasmuch as the treads are high upon the casing of the generator l0, it is seen that a man can easily stepover the generator casings and this ease is further facilitated in avery effective and cooperative manner by the curvature of the casing.The walkway thereby easily extends over portions of the power unitsbetween their axial ends. To permit the operator to step downconveniently into the relatively small space between the adjacent units,I provide steps 15, Fig. 2, on each side of the engine frame and supportthe steps thereon in a cantilever manner similarly to the treads 10 and1|. The steps on adjacent sides of adjacent units are in horizontalalignment in the same manner as thewalkway'treads 'III' II there'- byproviding a complete 'step of adequate area. All of the steps andwalkway treads are slightly spaced apart at their adjacent edges topermit ease in removal or replacement of a power unit. Also as shown inFig. 2, a man can if he desires easily lean over the engines whilestanding (Fig. 2) on the main longitudinal walkway and from thisposition he can also readily reach the electrical accessories on theopposite side of the super-structure.

Fig. '4 modification-Instead of having the electrical accessories suchas auxiliary generator M and accessory box 42 supported directly by thelegs 36, Fig. 6, of the super-structure frame, I have provided anintermediate frame 81 for supporting the auxiliary generator andaccessory I box independently of the'mainsuper-structure. Thisintermediate frame comprisestwo longitudinal angle irons 16 and 'I'Iconnected at each end by transverse angle iron pieces 18. Verticalcorner angle irons 19' are 'conected at each end by upper transverseangle irons '89 and by an outside longitudinal angle iron BI. Thisstructure is preferably welded together to form an integral unit while abase plate'82 is welded to the underside of the members 18,"l1and 18. VThe main super-structure frame has relatively short vertical portions 83connected by a longitudinal angle iron 84. Shortened dependent straphangers 85 are provided corresponding to'hangers 44 of Fig. 6. Theintermediate unitary frame is suitably removably connected to the main'superstructure preferably by bolts extending through the abuttinghorizontal legs of angle irons BI and 84, While the strap hangers 85 arebolted as at 86 to the welded members 80 and T9 at the corner juncturethereof. The foregoing combined 'main super-structure frame andintermediate accessory frame is then secured to the brackets I3 and I4in the same manner as previously described for Fig. 2. 7 V 7 eModifications of Figs, 14-16.-In this arrangement the individualduplicat power units each have an engine 90 and generator 9 I mountedupona preferably integral base generally indicated at 92. The engine andgenerator are slightly axially spaced apart so that the generator andengine shafts 93 and 94 may be axially connected through a suitablebolted flange connection. 7 The auxiliarygenerator 95 is mounted upon asuitable bracket secured to the top of generator 9I." Belt and pulleysgenerally indicated at 96 are driven fromthe shaft of generator 9| anddrive both the generator 9| and an air circulating fan 91. An enginewater cooling radiator 98 provided with lower and upper water headers 99and I are connected in any usual manner with the water jackets of theengine 0371-.- inders. Such a usual water connection is also employed inthe preferred form of Fig. 2. VThe radiator 98 rests upon and isremovably secured to a raised support I IJI extending upwardly from oneend of base 92. Th engine isof the same general type as shown in thepreferred form of Fig. 2, although in this modification the exhaustmanifolds I83 for each set of V-cylinders is connected as shown in Fig.15 by angled outlets I04 and I to vertical exhaust pipes or mufilers I06and I91 which perform the additional function of constituting cornerposts for the super-structure roof and side walls. The vertical exhaustpipes I96, I 01 discharge as shown in Fig. 14 through suitable openingsI88 while transverse arched angle irons I89 connect the exhaust pipes tothe upper radiator header I08. A suitable sheet metal wall coveringextends vertically along each side of the super-structure and acro ssthe arched top. Usual louvers are provided in the external wall III] onthe right side of Fig. 14 thereby permitting air to be drawn across theengine by blower 91 and discharged across radiator 98 to the outside.The individual power units with their self-contained super-structure andexternal wall portions may b bodily removed or replaced in the mannershown in my copending application Serial No. 258,689, filed February 27,1939. The detailed structure and mode of operation of this connectingand removal means need not be described in detail here as it is the sameas disclosed in my said copending application. It will suflice to pointout that certain of the operating mechanism of such removal means isdiagrammatically indicated in Fig. 16 at II2. A

In this modification of Figs. 14-16, I am still able to effectivelyprovide a longitudinal central walkway through the locomotive so thatthe walkway traverses the enginegenerator axis intermediately of theends thereof, specifically at the inner end of the engine adjacent thegenerator in the same broad manner as is done in the preferred form ofFig. 2 As seenin Fig. 14, a pair of angle irons I I3 is connected to thegenerator and engine frames to support the walkway tread H4. The treadfor each power unit extends as shown in Fig. 15 only for the width ofeach power unit, but by reason of being located down between theengineand generator it is possible to have the walkway extenduninterruptedly into alignment with the walkway of the adjacent units.If desired, vertical walls H5 and asmall horizontal wall IIB may beprovided adjacent the generator to avoid any possibility of the operatorbeing injured by the revolving generator armature. The various treadwaysand walls therefor may be welded or otherwise suitably removably boltedto the angle irons I I3 and to the generator casing. Each end of theunit walkway II4 may be provided with partial steps II! and. I I8dependently supported by the longitudinal treads I I4. The adjacentsteps II! and H8 of adjacent units together comprise a, complete step ofadequate area.

From the disclosure herein it is seen that .I have provided an extremelycompact locomotive capable of producing a large amount of power in aminimum length and this is accomplished while still permittingreasonable access to theengines as well as allowing convenientpassageway throughout the length of the locomotive. This passageway andaccessibility is in combination with a super-structure and accessoryarrangement of great simplicity and durability having low cost ofinitial manufacture and maintenance but without in any way sacrificingany desirable cooperative relationship of the Various parts.

It will of course be understood that various changes in detailsofconstruction and arrangement of parts may be made by those skilled inthe art without departing from the spirit of the invention as set forthin the appended claims.

I claim:

1. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing disposed with the engine crankshaft axes extending transversely ofthe frame and supported on top of said bed frame in side by siderelation to each other so as to form a longitudinally compact bank oftransverse power units, and means forming a walkway extendinglongitudinally through the locomotive over portions of the power unitswith the lengthwise axis of said walkway extending substantially atright angles to said crankshaft axes.

2. A locomotive comprising, in combination, a bed frame mounted up'ondriving wheels, a plurality of individual power units each having aninternal combustion engine provided With a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing disposed with the engine crankshaft axes extending transversely ofthe frame and supported on top of said bed frame in side by siderelation to each other so as to form a longitudinally compact bank oftransverse power units, and means forming a passageway extendinglongitudinally of the locomotive substantially centrally thereof and thelengthwise axis of said passageway traversing the power units betweentheir axial ends.

3. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing disposed with the engine crankshaft axes extending transversely ofthe frame and supported on top of said bed frame in side by siderelation to each other so as to form a longitudinally compact bank oftransverse power units, and walkway treads supported by each power unitas an individual part thereof and arranged so that the walkway treads ofthe adjacent units are disposed with respect to each other so that anoperator may walk through the locomotive longitudinally thereof with thelengthwise axis of said walkway extending substantially at right anglesto said crankshaft axes.

4. The combination set forth in claim 3 further characterized in thatsaid walkway treads are supported as cantilevers projecting outwardlyfrom each side of the units.

5. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing disposed with the engine crankshaft axes extending transversely ofthe frame and supported on top of said bed frame in side by siderelation to each other so as to form a longitudinally coinpact bank oftransverse power units, and unit walkway sections individually supportedby the respective generators and collectively constituting a walkwayextending longitudinally through the locomotive with the lengthwise axisof said walkway extending substantially at right angles to saidcrankshaft axes. I

6. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing disposed with the engine crankshaft axes ex tending transverselyof the frame and supported on top of said bed frame in side by siderelation to each other so as to form a longitudinally compact bank oftransverse power units, and means forming a walkway extendinglongitudinally through the locomotive and having unit walkway sectionssupported by and projecting laterally from each side of the generatorbelow its uppermost portion, with the lengthwise axis of said walkwayextending substantially at right angles to said crankshaft axes, saidwalkway sections of adjacent units being disposed in substantially thesame horizontal plane to allow a man to walk through the locomotive bypartially stepping over the upper portion of the generators.

'7. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units for supplyingpower to drive said wheels and each unit having an internal combustionengine provided with a crankshaft for driving an electric generatordisposed at one end of the engine and an engine water cooling radiator,a combined blower shield and radiator support connected to one end ofthe power unit for supporting the radiator and directing air flowthereover, and a rotary blower for circulating air over said radiator,said power units with their individual radiators and supporting airshields being supported on top of said bed frame in side by siderelation to each other with the crankshaft axes extending transverselyof said frame so as to form a longitudinally compact bank of transversepower units each having its oWn stream of radiator cooling air.

8. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, engine coolingradiators, one for each unit, means for upporting said radiatorsrespectively by the power units at the generator end thereof inlaterally spaced relation thereto to provide a self-contained structuretherewith, air circulating means including unit blowers disposed betweenthe radiator and generator of each unit, and a super-structure extendingover and forming a self-contained part of each unit by being supportedat one side by the unit engine and at the other side by the radiatorsupporting structure, said self-contained units being disposed on top ofsaid bed frame in side by side relation to each other with thecrankshaft axes extending transversely of said frame.

9. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving anelectric generator disposed at one end of the engine, said power unitsbeing supported on top of said bed frame in side by side relation toeach other with the crankshaft axes extending transversely of saidframe, each unit having a radiator located at one side of the locomotivenear the bed thereof, means forming a walkway extending longitudinallythrough the locomotive near the central portion thereof, and means forsupporting electrical accessories above the plane of said radiators andlaterally of said walkway so as to be accessible from said walkway andprovide headroom therefor.

10. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine and an electric generator disposed at one endof the engine, said power units being transversely supported on top ofsaid bed frame in side by side relation to each other and with theengines of the respective units located on the same side of thelocomotive, each unit having its own superstructure comprisingstructural side and roof members supported by the engine and by thegenerator, roof and side wall sheathing supported on said structuralmembers so that the sheathing for adjacent units is in substantiallycontiguous relation with each other to form substantially longitudinallycontinuous external roof and side wall of the locomotive.

- 11. The combination set forth in claim 10 further. characterized inthat said super-structure includes a frame for electrical accessoriesdisposed along one side of the super-structure.

'12. Th combination set forth in claim 10 further characterized in thatsaid super-structure includes a frame for electrical accessoriesdisposed along one side of the super-structure and forming a downwardlyextending continuation thereof and being separable therefrom.

13. The combination set forth in claim 10 further characterized by theprovision of stanchions connected to the power unit and extendingupwardly to the roof of said super-structure whereby each power unit maybe bodily lifted.

14. The combination set forth in claim 10 further characterized by theprovision of stanchions connected to the power unit and extendingupwardly to the roof of said super-structure whereby each power unit maybe bodily lifted together with the super-structure and its roof and sidewall sheathing while the remaining units remain in position.

15. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine and an electric generator disposed at one endof the engine, said power units being transversely supported on top ofsaid bed frame in side by side relation to each other, means forindependently removably connecting said power units to the bed frame,and means for bodily lifting said units independently of each otherincluding stanchions connected directly to the generator and to theengine for vertically lifting the same from the bed frame while theother power units remain in position.

16. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine and an electric generator disposed at one endof the engine and secured thereto to form a unitary structure therewith,said power units being disposed with the engine axes transversely of theframe and supported on top of said bed frame in side by side relation toeach other, and means for supporting said unitary structure on said bedframe including releasable supporting means connected to the engine in aplane substantially containing the center of gravity of the engine andother releasable supporting means connected to the generator in a planesubstantially containing the center of gravity of the generator.

17. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of said engine, said power units beingdisposed with the engine crankshaft axes transversely of the frame andsupported on top of said bed frame in side by side relation to eachother, means whereby each power unit has its own roof structure, meansfor independently removably connecting said power units to the bedframe, and vertical lifting members accessible from the top of said roofand connected to the generator and to the engine for bodily lifting saidunits and their respective roofs while the other power units remain inposition.

18. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of said engine, said power units beingdisposed with the engine crankshaft axes transversely of the frame andsupported on top of said bed frame in side by side relationv to eachother, means whereby each power unit has its own roof structure, meansfor independently removably connecting said power units to the bedframe, and means for bodily lifting said units and their respectiveroofs including stanchions connected to the generator and to the engineand extending entirely to the respective unit roofs so as to beaccessible from the top thereof whereby any one unit may be removedwhile the other power units remain in position.

19. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of the engine, said power units beingdisposed with the engine crankshaft axes transversely of the frame andsupported on top of said frame in side by side relation to each other,and means including a conical support and recess one of which isconnected to the unit and the other to the bed frame for supporting saidunit thereon, the axis of said conical support and recess extendingvertically whereby the unit may be bodily moved down on to said supportand be centered thereon by the conical action.

20. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, 2. plurality of individual power unitsfor supplyingpower to drive said wheels and each unit having an internal combustionengine provided with a crankshaft for driving a generator disposed atone end of the engine, said power units being supported on said bedframe in side by side relation to each other with V the crankshaft axesextending transversely of said frame, engine cooling radiators one foreach unit, each unit having crankshaft for driving a generator disposedat,

one end of the engine, said power units being supported on said bedframe in side by side relation to each other with the crankshaft axesextending transversely of said frame, engine cooling radiators one foreach unit, each unit having means for circulating air over itsindividual radiator including a blower and walls form n an air ductthrough which the blower circulates the air, means for individuallysupporting said air ducts by their respective power units including ductsupporting connections with the generators of said respective units, andmeans for supporting the power unit radiators by their respective ducts.

22. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of the engine, said power units beingsupported on said bed frame in side by side relation to each other withthe crankshaft axes extending transversely of said frame, engine coolingradiators one for each unit, each unit having means for circulating airover its individual radiator including a blower and walls forming an airduct having a lateral inlet through which the blower circulates the air,means for individually supporting said air ducts by their respectivepower units including duct supporting connections with the generators ofsaid respective units, and means for supporting the power unit radiatorsby their respective ducts.

23. The combination set forth in claim 20 further characterized in thateach unit has its own roof section, means including said duct walls forsupporting each roof section by its own power unit, and means wherebyeach power unit together with its duct, blower and roof section, allformed as a self-contained part of the power unit, may be bodily removedfrom the locomotive frame.

24. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of the engine, said power units beingsupported on said bed frame in side by side relation to each other withthe crankshaft axes extending transversely of said frame, engine coolingradiators one for each unit, each unit having means for circulating airover its individual radiator including a blower and walls forming an airduct having a lateral inlet through which the blower circulates the air,means for individually supporting said air ducts by their respectivepower units including duct supporting connections with the generators ofthe respective units, means for supporting the power unit radiators bytheir respective ducts, and means whereby each power unit may be removedfrom the locomotive together with its blower, duct, roof section andlateral air opening which communicates with the duct, all formed as aselfcontained part of the power unit.

25. A locomotive comprising, in combination, a frame mounted upondriving wheels, a plurality of individual power units for supplyingpower to drive said wheels and each unit having an internal combustionengine provided with a crankshaft for driving a generator disposed atone end of the engine, said power units being supported on top of saidframe in side by side relation to each other with the crankshaft axesextending transversely of said frame, means for independently removablyconnecting said power units to the frame, means whereby each power unithas its own roof structure, and vertical lifting members connected toeach power unit and operative when a lifting force is applied from thetop of the roof structure of an individual unit for bodily lifting theunit and its roof while the other power units remain in position.

26. A locomotive comprising, in combination, a frame mounted upondriving wheels, a plurality of individual power units for supplyingpower to drive said wheels and each unit having an internal combustionengine provided with a crankshaft for driving a generator disposed atone end of the engine, said power units being supported on top of saidframe in side by side relation to each other with the crankshaft axesextending transversely of said frame, means for independently removablyconnecting said power units to the frame, means whereby each power unithas its own roof structure, and vertical lifting members permanentlyconnected to each power unit and to the individual roof structures andoperative when a lifting force is applied from the top of the roofstructure of an individual unit for bodily lifting the unit and its roofwhile the other power units remain in position.

27. A locomotive comprising, in combination, a frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with cylinders and a crankshaft fordriving an electric generator disposed at one end of the engine, saidpower units being transversely supported on top of said frame in side byside relation to each other with the crankshaft axes extendingtransversely of said frame, means for independently removably connectingsaid power units to the frame, and means for bodily lifting said powerunits independently of each other including stanchions connecteddirectly to the power unit at axially spaced points thereof and at leastcertain of said stanchions having connection with the upper end of theengine cylinder.

28. A locomotive comprising, in combination, a bed frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine provided with a crankshaft for driving agenerator disposed at one end of the engine, said power units beingsupported on top of said bed frame in side by side relation to eachother with the crankshaft axes extending transversely of said frame,means for independently removably connecting said power units to theframe, means for bodily lifting said power units independently of eachother including stanchions connected directly to the power unit, a roofstructure operatively connected to said stanchions so as to be bodilyremovable as a unitary part of a power unit upon removal thereof, and adetachable lifting element adapted to be connected to said stanchions ata point adjacent said roof structure.

29. A locomotive comprising, in combination, a frame mounted upondriving wheels, a plurality of individual power units for supplyingpower to drive said wheels and each unit having an internal combustionengine provided with a crankshaft for driving a generator disposed atone end of the engine, said power units being supported on top of saidframe in side by side relation to each other with crankshaft axesextending transversely of said frame and the engines of the respectiveunits being offset to one side of the locomotive, each power unit havingits own superstructure including a roof section supported by the powerunit in substantially symmetrical relation to the centerline of thelocomotive, and vertical lifting means connected to said offset powerunit and to said symmetrically located roof section for bodily liftingthe power unit and roof together as a unitary structure while theremaining units and their respective roof sections remain in position onthe locomotive frame.

30. A locomotive comprising, in combination, a frame mounted upondriving wheels, a plurality of individual power units each having aninternal combustion engine and a generator disposed at one end of theengine to be driven thereby, said power units being transverselysupported on top of said frame in side by side relation to each otherand the engines of the respective power units being offset to'one sideof the locomotive whereby the frame is loaded eccentrically by the powerunits, each power unit having a second generator offset on the otherside of the centerline of the locomotive thereby effecting acounterbalancing action to the offset engine unit, and each power unithaving driving connections between its engine and the second generator.

MAX ESSL.

